APA aipamena

(1993). Journal for farming systems research- extension. Association for Farming Systems Research- Extension.

Chicago Style aipamena

Journal for Farming Systems Research- Extension. Association for Farming Systems Research- Extension, 1993.

MLA aipamena

Journal for Farming Systems Research- Extension. Association for Farming Systems Research- Extension, 1993.

Kontuz: berrikusi erreferentzia hauek erabili aurretik.